The company's managing director, James Kirk, who is a friend of the couple, said: "I've known Graeme a while now and I previously acted for him when they were selling a property in Lady Bay.

"I was at his and Sarah's wedding and Graeme said to me he wanted to find a site to project manage and build their dream house, and I had another client who owned three plots of land up there in Caythorpe.

"The remit for their home was to design an eco-friendly, extremely high-spec property. For Graeme and Sarah, it was their dream and they worked on it right down to the toilet- holder and the front door material."

The house, which is on the market with a guide price of £1.2m, was built and completed in 2012 with the help of Notts architect Valeria Passetti.

Behind its gleaming white exterior is an array of pristine rooms, fitted out to the highest specifications.

It is believed the Swanns are selling up in order to move back to West Bridgford to be closer to their friends.

Swann himself told a national newspaper that the pair planned to ultimately begin another renovation project, saying: "We've got the bug now. Seeing something transformed before your eyes is addictive."

Mr Kirk said The Cygnets had already attracted considerable interest, including from some of the city's footballers.

He said: "We have had a couple of Nottingham Forest players interested.

"We've had a surgeon look around and a couple of groups from Leicestershire and Derbyshire."

He added: "Houses like this really do show what money is out there.

"I'm excited at not only representing a high-profile, well- thought-of cricketer, but also a young couple who embarked on their dream."

As for whoever buys it, Mr Kirk said: "They are going to get a hell of a deal."

The emergence of the Swanns' home on the local housing market comes as Experian revealed there had been a rise in the number of houses over £500,000 available for sale in and around Notts.

The Nottingham-based credit company's latest Property Index showed that the first three months of the year saw the highest year-on-year increase in the number of properties worth more than £500,000 appearing for sale in the Midlands since the end of 2012.

It is also up 19.6 per cent compared with the same period in 2013.

According to the Land Registry, the average price of a house in Nottinghamshire has also risen over the past two years.

In February 2012, it stood at £117,000, but it had risen to £118,000 a year later. By February this year, the average price had gone up to £122,000.